package E;

class A{
    double f(double x,double y){
        return  x+y;
    }
}

class B extends A{
    double f(int x,int y){
        return x*y;
    }
}

public class E {
    public static void main(String[] args){
        B b = new B();
        System.out.println(b.f(3,5));
        System.out.println(b.f(3.0,5.0));
    }
}
